John Jackson, The Theory and Practice of Handwriting (1894)
“ On comparing the writing of a copy-book in which the writing was first sloping and later vertical, one could perceive with satisfaction how much prettier and more regular an impression was made on the beholder by the Vertical Writing as contrasted with the Sloping Writing. What a salutary tranquil look a vertically writing class keeps, what a restless spirit prevails among a number of obliquely writing scholars with the constant change of the posture of the body and position of the copy-book which can never be completely kept in check even with the most attentive supervision. ”

